Machine for operating on heels.



T. LUND.

MACHINE FOR OPERATING 0N HEELS.

APPLICATION FILED NOV. 27. 1911. RENEWED MAR. 4. 1915.

1,1 61,058; Patented Nov. 23, 1915.

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TnoMAsLUNn, or BEVERLY, MAssAcHUsE'r'rs, \ASSIGNOR ToUEITEE snon MACHINERY COMPANY, or PATERSON, NEW JERSEY, A coEPoaATIo 0E 1 NEW JEEsEY.

MACHINE FOR OPERATING oiv HEELS.

Specification of Letters Patent. Patented N 23 1915 Application filed November '27, 1911, Serial no; 662,601. Renewed March 4, 1915. Serial No. 12,108.

To all whom it may concern:

Be it known that I, THOMAS LUND, a citizen of the United States residing at Beverly, in the county of Essex and State of Massachusetts, have invented certain Im provements in Machines for Operating on Heels, of which the following description, in connection with the accompanylng drawings, is a specification, like reference characters on the drawlngs indicating like parts cordingly must be pricked obliquely. Here tofore it has been customary to hold a heel blank between two heel-engaging members theeffective faces of which are disposed at an inclination to the path of the awls. It has been found desirable'to shape the inclined faces of both the heel holding members to coincide in their inclination with the tread and heel seat surfaces of the heel to be operated upon. The face of the member against which the heel is forced during the working stroke of the awls must be properly shaped to hold the heel against slipping or tilting during this operation as otherwise the awl holes will take a wrong direction, and the face of the die plate through which the awls' reciprocate must also be shaped properly to prevent movement of the heel during the stripping or withdrawal of the awls as otherwise the awls heel, the awls will be unsupported. An-

will be bent and are likely to be broken or the lifts of the heel pulled apart. Moreover, if a fair bearing is not afiorded for both surfaces of the heel when it is subjected to pressure preliminarily to the pricking op eration, as is customary, the heel is likely to be distorted. Heretofore the desired shape? has been given to the die plate by grinding off on a bevel its effective work-engaging face. By thisexpechent satisfactory operation is secured in dealing withheels having a given shape but if it is desired to operate upon heels of a different shape, or to vary theinclination of the awl holes in the heel heel.

it is necessary to substitute a new die plate having its face ground to a correspondingly diflerent bevel.

With these cons derations in view an important feature of the present invention,

consists in providing an auxiliary heel-engaging stop or abutment movable into and.

out of operative position between the workengaging'face of the die plate and the proximate surface of the heel blank and constructed and arranged, when in operative position, tohold the heel at an inclination to the face of the die plate and the awl passages therein.

Another important feature of the inven tion consists in so arranging a stop for engagingone face of the heel as to extend from the member which bears upon the 0pposite face of the heel, for example, as by mounting the stop for the tread. face of the heel upon the member which carries the heel seat plate. Anadvantage of this construction is that the heel blank may be thereby more positively handled and moved to and from operative position than in machines where the heelfblrnks are manipulated entirely by hand. lheheel is also held more firnlnly while it "is being stripped from the aw s.

As herein shown the stop is moved auto matically into and out of operative position and accordingly a stop arranged for automaticioperation in thismanner constitutes another important feature of the invention.

In presenting a heel blank to the die plate with its proximate face inclined thereto it will'be apparent that the awl guiding passages in thedie plate terminate short of the surface of the heel and that, while traversing the space between the die plate and the other feature of the present invention consists in providing means for supporting and guiding the awls or tools in this space regardless of the shape of the heel or the in clination of its proximate surface relatively to the face of the die plate. As herein shown this result is effected by providing the tools,

or certain of them, with yielding guiding tubes which are arranged to be moved automatically into conformity with the surface of the heel by the presentation thereto of the I The provision of guiding tubes of this character constitutes another important feature ofthe invention. It is, further, believed that guiding tubes of this character have never before; been used in combination 1918, upon an invention of John E. Glid-l den, although the present invention is not limited to that type of machine but hasa more general application.

In'the drawings,'-Figure lis a view in side elevation of the operating parts ofa pricking machine showing a heel blank in whichthe awls are inserted, and Fig. 2 is a similar view showing the parts of the machine in their initial position.

' The machine herein shown, like that of said patent, comprises a head 10 in which is removably received the follower plate 12 having a curved and inclined face shaped to l fit the heel seat surface of the heel blank 50 standing with its breast surface inclined slightly to the horizontal. Oppositely disposed ,withrespect to the follower plate 12 is the perforated die plate 14: having asub- .stantially vertical engaging face and horizontal awl passages in which work the awls 16 set in the awl plate 18. i The heel blank 50 rests upon a bottom plate 20 which eX- tends outwardly toward the front of the ma chine thus aifordinga convenient support upon which successive heel blanks may be presented in operative position.

The heel blank is positioned laterally by a forked yoke 22 arranged to reciprocate vertically adjacent to the face of the die plate.

gage the heel blank between itself and the diefplate 141, the arrangement being such that after the heel has been engaged relative movement of the awls and die plate takes place whereby the awls are forced into the heel blank. The means for advancing the head 10 and for causing relative movement of the die plate and awls are not illustrated herein as they form no part of the present invention They are, however, fully illustrated anddescribed in the patent above identified to which reference may be had for details of construction.

In order to hold the heel blank inclined.

with respect to the die plate 14' and the awls 16 the hook shaped stop 30 is arranged to engagethe rear portion of the tread surface of the heel and hold it away from the surfaceof the die plate. The stop 30 is adjustably mounted upon one end of thelever 32pivoted on the pin 33 to ears extending Means, not shown, are provided for advancing the follower plate 12 to enupwardly from the bracket 34: on the head 10. Normally the stop 30 is held in an elevated position by a springSG' which bears upon the lever32 at the rear of its pivot and acts against the overhanging arm 38 on the bracket In this position the stop does not interfere with the presentation of a heel blank to the machine by moving the blank laterally upon the bottom plate 20 into alinement with and between'the die 7 plate 1% and the head 10.

Any convenient means maybe employed for moving the stop 30 positively into operative position and for holding the stop during-the pricking and stripping operations, As shown herein the lever 32 is provided at its rear end with a roller39 which runs upon a stationary cam track 40. The camtraek 10 is so shaped as to elevate the rear end ofthe lever 32 when the head 10 is moved toward the die plate and accordingly the stop 30 is depressed into substantially the position shown in Fig. l and held positively in this position during-the pricking operation and until the stripping operation has been completed. V

In order to guide the awls while they traversethe space between the engaging face 15 of the'die platela and the tread surface of the heel blank 50, the die plate is'chambered to, receive the guiding tubes 1 1 which are normally held yieldingly in the position shown in Fig. 2, that is, with their outer ends in a plane parallel to the face 15, by compression springs 46 one of which ,encir- 1G3 cles the rear portion of each tube. It will be seen therefore, that when a heelheld with I its face at an inclination to the die plate is forced against the ends of the tubes 44; the lower tubes will be forced back into their chambers for substantially, their entire length while the remaining tubes automatically adjust themselves to engage the inclined face of the heel blank at the points where the latter is to be operated upon by the awls.

In operating the machine a followerplate 12 havingthe desired shape is fitted into the head 10, a heel blank is placed in position and the machine is started. ,Thereupon the a head 10 advances toward the die plate, engaging the heel vblank and forcing'it against the ends of the tubes 44." The action of the inclined face of the follower plate 12 in pressingthe heel blank against the ends of the yielding tubes causes the heel ,blank to tilt until its heel seat faceengages the follower plate fairly as shown in Fig. 1 and at the same time the cam 40 acts tomove the 7 stop 30 into engagement with the tread face of the heel blank; The pricking operation isthen effected either by forcing the awls through the die 'plateor by moving the die plate, heel blank and head relatively to the awl block. WVhen the awls have been in- 13) Having thus described my invention what I claim as new and desire to secureby Letters Patent of the United States is 1. A machine for operating on heels having, in combination, oppositely disposed heel-engaging members, a gang of tools operating through one of .said members, and

a heel-engaging device having .a' portion shaped to engage the tread surface of the heel, said devicebeing inounteduponthe other of said members and arranged to hold a heel blank positively against movement in the direction of saidtools while thetools are being retracted into said first mentioned member.

2. A machine for operating on heels having, in combination, a plate for engaging a part of the tread surface of a heel blank, an oppositely disposed member shaped to fit the heel seat surface of the heel blank, and a retaining device supportedupon said member and arranged to engage the tread surface of the blank.

3. A machine for operating on heels having, in combination, a die plate, awls working therein, a supporting member shaped to hold a heel blank with its tread face. at an inclination to said die plate, and a retaining device mounted upon said supporting member and arranged to prevent movement of the heel blank during the retraction of the awls.

4. A machine for operating on heels having, in combination, a die plate having passages therein, a gang of awls arranged for reciprocation through said passages in a direction substantially perpendicular to the face of said die plate, means for supporting a heel blank with its tread face inclined to the path of said awls, and a retaining device connected with said supporting means and arranged to hold the heel blank with its tread face in said inclined position during the retraction of the awls.

5. A machine for operating on heels having, in combination, a die plate and a heel supporting member having relatively inclined faces, and a retaining device mounted upon the latter member and having a portion. shaped to engage the tread face of a heel blank, to hold the blank positively against movement away from said member.

6. A machine for operating on heels having, in combination, a die plate and awls working therein, a supporting member ar-,

ranged to hold a heel blank with its tread face at an inclination to said die plate and in engagement withtlie die'plate near its breast edge, and a retaining. device con-. nected with saidsupporting memberand are ranged to engage the heel blank near the rear end of itstread face and prevent an-i gular movement ofthe blank during theretraction of the awls.

7. A machine for operating on lieels'hav ing, in combination, a die plate, tools work.-

in therein a suaoortih member arran 'ed .D 7 D b to hold a heel blankwithits tread faceinclined to said die plate, and a heel blank retaining device mounted on the supporting member (and having. provision 1 for adjustment to accommodate blanks of 1 different heights.

8. ,A machine for operating on heels having, in combination, a the plate, tools'workingtherein, a supporting member arranged to hold a heel blank with its tread face inclined to said die plate, and a retaining device for holding one end of the tread face of the heel blank away from said die plate, said retaining device being movable from operative to inoperative position.

9. A machine for operating on heels having, in combination, relatively movable heelengaging members having oppositely disposed, relatively inclined faces, a retaining device for holding part of one face of a heel away from one of the members, and means for moving said'retaining device into heel engaging position when said members are moved toward each other.

10. A machine for operating on heels having, in combination, relatively movable heelengaging members having oppositely dis-.

posed faces relatively inclined, tools for opcrating on a heel held by said members, a movable retaining device for holding part of one face of a heel away from one of the members, positive means for moving said device into holding position, and yielding means for retracting said device.

11. A machine for operating on heels having, in combination, a die plate having a plurality, of tool guiding tubes projecting therefrom arranged for lengthwise yielding movement to accommodate themselves to the surface of work presented to the die plate at an inclination, a stop arranged to hold one edge of the work away from the die plate, and tools working in said tubes in a path inclined to the face of the work.

12. A machine for operating on heels hav- 7 ing in combination, a die plate having a plurality of tool guiding tubes yieldingly 13. A machine for operating on heels having, in combination, heel engaging members having relativelyinclined faces, and a plus r ality of tubes set in one of said members I and held with their ends in a plane parallel to the faceof the member in which they are set, the other of said members having means i for. holding a heel at an angle to the tubecarrying member and being movable to force a heel-against the endsof said tubes thereby causing them to move into conformity With.

' the inclined surface of the heel by which Copies of this patent may be obtained for engaging face and aWlpassages extending' at right angles thereto, a retainingfmember I pressing member having an oblique face for engaging the heel sea-t surface of a heel.

In testimony whereof I have-signed my name to this specification in the presence of two subscribing Witnesses. V

" THOMAS 'LUND;

Witnesses: V

a CHESTER, E. ROGERS,

LAURA M. GooDRIDGE.

five cents each, by addressing the Commissioner of Patents. Washington, D. G. Y 

